A patient arrives at a hospital suffering from serious difficulty breathing and shortness of breath. Initial tests indicate none of the standard respiratory infectious agents are present. The physician suspects an immune disorder. What clinical
indicators would distinguish between asthma, pneumonitis and Pneumocystic pneumonia?
What will be an ideal response?
Asthma would produce high levels of histamines and leukotrienes, resulting in production of excess mucus in the trachea and bronchi and constriction of the bronchi. High antibody titers and low levels of complement proteins along with generalized inflammation of the lung tissue would indicate pneumonitis. CD4 T cell counts of less than 200/microliter of blood is consistent with Pneumocystic pneumonia.
Bloom's Taxonomy: Analysis
Section: Immunodeficiency Diseases
Learning Outcome: 18.9, 18.20
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What are at least two arguments for conserving biodiversity?
What will be an ideal response?
Collectively, the materials eliminated from the nephron are called ____.
a. electrolytes b. urine c. renin d. filtrate.
This biome is located near oceans with wet, cool winters and hot, dry summers. Rainfall is 40 to 100 centimeters per year.
A. prairie B. savanna C. tundra D. chaparral
Tiktaalik appears to:
a) be a descendant of the one branch of ancestral horses that survived until today. b) be a "living fossil" since it resembles many of the earliest fish, yet populations thrive today. c) represent a transitional species, somewhere between fish and land animals. d) be an extinct species of fish that was also able to fly, due to flaps of skin between its fins. e) be an extinct species of giant fish that was subject to strong selection for smaller body size.